The GRIPPER 4 Elements Two Tone Shaft from UNICORN are 2 color shafts consisting of polycarbonate for grip and durability finished with the Zero RH technology, ring compression for security and has the best grip ever! The Gripper 4 shafts are available in 3 sizes LONG: Length 47.00mm, Weight 1.18 grams. MEDIUM: Length 41.00 mm, Weight 1.03 grams. SHORT: Length 35.00 mm, Weight 0.78 grams. You can easily replace shafts with every dart. They are available in a variety of sizes to suit your dart in length and feel. Sizes: XX-Short / Micro, X-Short, Short, In Between, Medium & Long. In addition, they also consist of different materials: nylon, carbon, plastic, metal, etc. In short, you can adjust your dart to your own taste and feeling by using different types of shafts.